I have undertaken some seasonal ARIMA modelling and, for example, a typical
resulting model is ARIMA(1,0,0)(1,1,0)12, plus an intervention variable.
Alternatively, there is also ARIMA(1,0,1)(1,10)12.
Is there a preferred way to present this notationally?
Replies to me please. Thanks
Dr David Pitfield AcSS
Transport Studies Group
Leics LE11 3TU
17 Bunny Lane